Driving means for grain elevators



March 2, 1937. I 0 J. D. HOFER DRIVING MEANS FOR GRAIN ELEVATORS Filed April 25, 1936 2 Sheets-Sheet 1 [nuenlor W x g 5 A llomey Marh 2, 1937. J, D, H FER 2,072,400

DRIVING MEANS FOR GRAIN ELEVATORS Filed April 25, 1936 2 Sheets-Sheet 2 Q q A, L

Invenlor Patented Mar. 2,.1937

UNITED STATES PATENT OFFICE 2 Claims.

This invention has reference particularly to a device which may be termed a jack, and primarily designed for use in driving portable grain elevators.

The invention consists in the provision of means whereby the shaft of a grain elevator or any similar elevator may be readily and quickly connected with the power take-off shaft of a tractor or the like for making use of the power unit of the tractor for driving the elevator.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying'drawings wherein:

Figure 1 is an elevational view illustrating the application of the invention.

Figure 2 is a side elevational view of a portion of an elevator and illustrating the application of certain features of the present invention thereto and v Figure 3 is a fragmentary rear elevational view of an elevator and a bracket mounted thereon in accordance with the present invention.

Referring to the drawings by reference numerals it will be seen that 5 indicates a portion of a conventional portable grain elevator the bottom shaft of which is indicated by the reference numeral 6. g

In accordance with the present invention there is provided a frame-like bracket 1 having projecting laterally from the respective opposite ends thereof attaching arms 8 through the medium of which and fastening elements 9 the bracket is secured to the rear side of the elevator 5 to extend laterally therefrom as shown.

The bracket 1 is provided with spaced pairs of bearings in and II in which are journaled shafts I2 and I3 respectively.

Shafts l2 and I3 are connected together through the medium of a suitable chain and sprocket mechanism l4.

Also in accordance with the present invention shaft I3 is in driving engagement with the elevator shaft 6 through the medium of a chain and sprocket drive connection l5.

When it is desired to drive the elevator from the power take-off shaft l6 of a tractor or similar powered vehicle a portion of which is shown in the drawings and indicated by the reference numeral I! there is connected to the power takeoff shaft IB through the medium of a universal coupling member it one end of a power shaft IS the other end of which is connected with the shaft l2 through the medium of a universal coupling 20 all'of which is clearly shown in Figure 1.

It will thus be seen that drive will be transmitted from the shaft 16 through the shaft I9 to the shaft l2 and from the shaft l2 through the chain and sprocket ,mechanism It to the shaft l3, and from the shaft l3 through the chain and sprocket mechanism l5 to the elevator shaft 6 for driving the latter.

From the above it will be seen that provision is made whereby the shaft of a portable grain elevator or the like may be readily placed in driven engagement with the power take-off shaft of a tractor or similar motor vehicle, and that this placing of the elevator shaft in driven engagement with the power take-off shaft may be accomplished without requiring a high degree of skill.

Having thus described the invention what is claimed as new is:

1. A sprocket mounting for a power take-off for elevators comprising a bracket in the form of an open frame including upper and lower frame members and spaced parallel vertical frame members, upper andlower attaching arms extending from one side of the bracket in alignment with the upper and lower frame members for attaching the bracket to one side of the elevator, said vertical members having aligned bearing bosses formed on their opposed faces and shaftings journalled in said bearing bosses and a shaft extension projecting outwardly from the bracket forming a drive connection for said shaftings.

2. A bracket mounting for a power take-off for grain elevators comprising a bracket in the form of an open frame including upper and lower frame members and spaced parallel vertical frame members, upper and lower attaching arms extending from one side of the bracket in alignment with the upper and lower frame members for attaching the bracket to one side of the elevator, said vertical members having aligned bearing bosses formed on their opposed faces, a pair of shafts journalled in said bearing bosses, a chain and sprocket connection between said shafts, a drive extension for one of the shafts and driven means operatively connected to the other of said shafts.

JACOB D. HOFER. 

